I'm a bit lost with an issue on an ARM64 system. Every emerge runs successfully but stops at the end w/

Code:

bash: line 1: 7: Bad file descriptor

.
It's an odroid hc2 and was so far running very smooth. Today I updated the kernel from hardkernel git to 4.14.55 and did some cleanup as the sd-card was running out of space. So I may have deleted something accidently but don't know where to look for.

Please see the output of "emerge --info" with the "hang" and hitting "^C" afterwards.

Note that I have a recent backup of the system but I would like to avoid the process of restoring, syncing and building the kernel again as it will take *some* time on a system w/ a SD card.
Any help would be appreciated.

--- edit ---
I found the problem myself and have to admit that the problem was in front of the keyboard . I had a midnight commander session running in background (^O) and that caused emerge not to return properly. Sorry for this post ...